[pron]

> it's perfectly acceptable to interpret it without whatever understanding you think as "objective"

Not really, which is precisely the meaning of objective. But in any event, it is acceptable for Twitter to decide that this crosses a line, as they want to be on the safe side.

> What law?

I'm talking about any system of law in general, and Twitter rules are a kind of laws.

> And this kind of extreme, offensive and divise speech doesn't harm the US society?

That's a fair point, but again, no matter what you do you need to draw the line somewhere. I think that drawing the line at dehumanizing speech but not at divisive speech is more-or-less in tow with current standards of organizations in Western democracies, which is a reasonable standard for Twitter as well.